Improved two-position four-way electromagnetic valve

Abstract

The utility model belongs to the technical field of electromagnetic valves, and particularly provides an improved two-position four-way electromagnetic valve which comprises a main valve sleeve, a sliding valve element sliding in the axial direction of the main valve sleeve is arranged in the main valve sleeve, and a U-shaped groove through-flow opening is formed in one end of the main valve sleeve in the axial direction. The flux sleeve is connected with the other end of the main valve sleeve through a steel wire baffle ring; the moving iron is accommodated in the flux sleeve and is driven to move axially; one end of the push rod is connected with the moving iron, and the other end is connected with the slide valve core; the three sections of hole channels are sequentially arranged on the radial side wall of the main valve sleeve; the moving iron is powered on and driven by the flux sleeve to drive the sliding valve element to axially move in the main valve sleeve through the push rod, opening and closing of a hole channel in the side wall of the main valve sleeve are achieved, and opening and closing of an oil way are achieved. The main valve sleeve adopts the U-shaped groove structural design, so that the flow capacity of the valve sleeve is enhanced, and the pressure loss is reduced; a driving structure is changed into a push type structure, hydraulic power is changed into main power, the power domain of the electromagnetic valve is improved, the flux sleeve is limited by a steel wire baffle ring, and the finish machining difficulty of the main valve sleeve is reduced.

Description

TECHNICAL FIELD

[0001] The utility model mainly relates to solenoid valve technical field, concretely relates to an improved two-position four-way solenoid valve. BACKGROUND

[0002] Plug-in solenoid valves are often used in hydraulic systems for oil path switching. Most solenoid valves on the market have a circular hole design for oil passage, which has poor flow capacity and high pressure loss. Moreover, most of these solenoid valves have a pull structure, which has a large liquid dynamic force during use and risks valve jamming. To meet the diversified development of the market, a new two-position four-way solenoid valve is proposed. SUMMARY

[0003] 1. Technical problem to be solved by the utility model:

[0004] The utility model provides an improved two-position four-way solenoid valve to solve the technical problems in the background technology.

[0005] 2. Technical solution:

[0006] To achieve the above purpose, the technical solution of the utility model is as follows:

[0007] An improved two-position four-way solenoid valve, which comprises

[0008] A main valve sleeve with a spool valve core sliding in its axial direction inside, and a U-shaped slot flow port axially arranged at one end of the main valve sleeve;

[0009] A magnetic guide sleeve connected to the other end of the main valve sleeve through a steel wire retainer;

[0010] A moving iron housed in the magnetic guide sleeve and axially moved by driving;

[0011] A push rod connected to the moving iron at one end and to the spool valve core at the other end;

[0012] Three section channels sequentially arranged on the radial side wall of the main valve sleeve;

[0013] The moving iron is driven by the magnetic guide sleeve to axially move the spool valve core in the main valve sleeve through the push rod, to open and close the channels on the side wall of the main valve sleeve and to open and close the oil path.

[0014] Further improvement is that an outer circular arc groove is arranged on one side of the main valve sleeve, and an inner circular arc groove is arranged on the mouth of the magnetic guide sleeve, and the outer circular arc groove and the inner circular arc groove are connected and fixed by the steel wire retainer.

[0015] Further improvement lies in that a spring is arranged on the outer ring of the slide valve core, one end of the spring is pressed on one side of the slide valve core to press and limit the slide valve core on the magnetic sleeve, and the other end of the spring is pressed on one end of the main valve sleeve.

[0016] Further improvement lies in that the end surface of the slide valve core is processed with a circular arc type straight groove.

[0017] Further improvement lies in that the outer diameter of the slide valve core is processed with nine pressure equalizing grooves, and the depth and width of the pressure equalizing grooves are both 0.5 mm.

[0018] Further improvement lies in that the outer part of the magnetic sleeve is provided with external threads matched with the valve block, and an O-shaped ring is arranged on the external threads.

[0019] Further improvement lies in that an emergency push rod is arranged on the end of the moving iron.

[0020] Further improvement lies in that an O-shaped ring is arranged on the emergency push rod.

[0021] Further improvement lies in that a locking nut is arranged on the end of the magnetic sleeve.

[0022] Further improvement lies in that a groove is processed on the outer circle of the main valve sleeve.

[0023] 3. Beneficial effects:

[0024] Compared with the prior art, the technical scheme has the beneficial effects that:

[0025] The electromagnetic valve provided by the utility model adopts the U-shaped groove structure design of the main valve sleeve, enhances the flow capacity of the valve sleeve and reduces pressure loss;

[0026] The electromagnetic valve driving structure provided by the utility model is changed into a push type structure, the liquid power is changed into the main power, and the power domain of the electromagnetic valve is improved.

[0027] The electromagnetic valve provided by the utility model adopts the steel wire check ring limiting of the magnetic sleeve, and the difficulty of the fine machining of the main valve sleeve is reduced. DRAWINGS

[0028] Fig. 1 It is a structural schematic diagram of the utility model;

[0029] Fig. 2 It is a structural schematic diagram of the main valve sleeve of the utility model

[0030] Fig. 3 It is a structural schematic diagram of the slide valve core of the utility model.

[0031] REFERENCE SIGNS:

[0032] 1 - main valve sleeve; 2 - spool; 3 - steel wire retainer; 4 - spring; 5 - magnetic sleeve; 6 - push rod; 7 - moving iron; 8 - emergency push rod; 9 - locking nut. DETAILED DESCRIPTION

[0033] In order to facilitate the understanding of the present application, the present application will be described more fully below with reference to the accompanying drawings, wherein several embodiments of the present application are given. However, the present application can be realized in many different forms and is not limited to the embodiments described herein, on the contrary, the purpose of providing these embodiments is to make the disclosure of the present application more thorough and comprehensive.

[0034] In the present application, unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connection", "fixing", "provided with" and other terms should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium, or it can be connected inside two elements. For ordinary skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0035] It should be noted that the structures not introduced in the present application do not involve the design points and improvement direction of the present application, and all adopt the prior art. The above content belongs to the technical cognition range of the present application, and since the technical content in this field is vast and complex, the above content of the present application does not necessarily constitute the prior art.

[0036] Reference Figs. 1-3 The embodiment is an improved two-position four-way electromagnetic valve, which comprises

[0037] The main valve sleeve 1 is provided with a spool 2 sliding in the axial direction thereof, and the main valve sleeve 1 is provided with a U-shaped groove flow port ① arranged axially at one end;

[0038] The magnetic sleeve 5 is connected to the other end of the main valve sleeve 1 through the steel wire retainer 3;

[0039] The moving iron 7 is accommodated in the magnetic sleeve 5 and is driven to move axially;

[0040] The push rod 6 is connected to the moving iron 7 at one end and connected to the spool 2 at the other end;

[0041] The three-section hole (②③④) is arranged on the radial side wall of the main valve sleeve 1 in sequence;

[0042] The moving iron 7 is driven by the magnetic sleeve 5 to drive the spool 2 to move axially in the main valve sleeve 1 through the push rod 6, so as to realize the opening and closing of the hole of the side wall of the main valve sleeve 1 and realize the opening and closing of the oil path.

[0043] The outer circle of the middle part of the spool valve core 4 is provided with annular through-flow flow channels of different lengths, facilitating the flow of oil from different holes.

[0044] The utility model discloses a solenoid valve, and the main valve sleeve 1 adopts U-shaped groove structure design, enhances the through-flow capacity of valve sleeve, reduces the pressure loss, the solenoid valve drive structure changes to push type structure, and the liquid power becomes the initiative, improves solenoid valve power domain, and the magnetic conducting sleeve 5 adopts steel wire check ring 3 and carries out the location, reduces the finishing difficulty of main valve sleeve 1.

[0045] In the preferred embodiment, the main valve sleeve 1 is provided with an outer circular arc groove on one side, and the magnetic conducting sleeve 5 is provided with an inner circular arc groove at the mouth, the outer circular arc groove and the inner circular arc groove are connected and fixed through the steel wire check ring 3, the main valve sleeve 1 and the magnetic conducting sleeve 5 are connected through the steel wire check ring 3, the steel wire check ring 3 mainly plays a limiting role, and compared with the threaded connection structure of the main valve sleeve 1 and the magnetic conducting sleeve 5 in the prior art, the steel wire check ring 3 can play a dynamic adjustment role, thereby effectively reducing the valve jamming phenomenon caused by the poor coaxiality machining of the main valve sleeve 1.

[0046] The embodiment further includes a spring 4 arranged on the outer circle of the spool valve core 2, one end of the spring 4 is pressed against one side of the spool valve core 2, the spool valve core 2 is pressed against the magnetic conducting sleeve 5 to limit the position, and the other end of the spring 4 is pressed against one end of the main valve sleeve 1, so as to ensure the normal reset of the spool valve core 2.

[0047] In the preferred embodiment, the end surface of the spool valve core 2 is processed with a circular arc type straight groove, so that the entire valve body is filled with oil when the valve works, and the pressure balance in the entire valve is realized.

[0048] In the preferred embodiment, the outer diameter of the spool valve core 2 is processed with nine equalizing grooves, the depth and width of the equalizing grooves are both 0.5 mm, and the spool valve core 2 can be uniformly stressed in each direction when the spool valve core 2 works.

[0049] The mounting mode of the plug-in solenoid valve provided in the embodiment is plug-in type, the outer part of the magnetic conducting sleeve 5 is provided with external threads matched with the valve block, an O-ring is arranged on the external threads, and the O-ring is used for sealing oil and preventing oil from exuding.

[0050] The embodiment further includes an emergency push rod 8 arranged at the end of the moving iron 7, and the arrangement of the emergency push rod 8 can effectively reduce the occurrence of accidents.

[0051] In the preferred embodiment, the emergency push rod 8 is provided with an O-ring, which is used for sealing oil and preventing oil from exuding.

[0052] The embodiment further includes a locking nut 9 arranged at the end of the magnetic conducting sleeve 5.

[0053] In the preferred embodiment, the outer circle of the main valve sleeve 1 is processed with a groove, which is used for assembling a dumbbell ring and an O-ring, and the groove is mainly used for sealing oil and preventing oil in the P port (oil inlet port) from leaking to the T port (oil return port).

[0054] Wherein, Figure 1 shows that the plug-in electromagnetic valve is not powered state, at this time each oil port is not mutual, when the electromagnetic valve starts to power, the electromagnetic force generated makes the dynamic iron 7 push the push rod 6, in turn push the slide valve core 2 to overcome the spring force of spring 4, allow oil from ③ to ④ and from ② to ①.

[0055] The above-described embodiments only express certain implementation manners of the present application, and the description is relatively specific and detailed, but it should not be understood as a limitation on the scope of the present application; it should be pointed out that for ordinary skilled persons in the art, without departing from the concept of the present application, a number of modifications and improvements can be made, which all belong to the protection scope of the present application; therefore, the protection scope of the present application patent should be subject to the appended claims.

Claims

1. An improved two-position four-way solenoid valve characterized by, The electromagnetic valve comprises A main valve sleeve, which is internally provided with a spool core sliding in the axial direction thereof, and is provided at one end with a U-shaped slot through-flow opening arranged in the axial direction; A magnetic conducting sleeve, which is connected to the other end of the main valve sleeve through a steel wire retainer; A moving iron, which is accommodated in the magnetic conducting sleeve and is driven to move axially; A push rod, one end of which is connected to the moving iron and the other end of which is connected to the spool core; Three-stage channels, which are arranged in sequence on the radial side wall of the main valve sleeve; The moving iron is driven by the energization of the magnetic conducting sleeve to drive the spool core to move axially in the main valve sleeve through the push rod, so as to realize the opening and closing of the side wall channel of the main valve sleeve and the opening and closing of the oil passage.

2. An improved two-position four-way solenoid valve as claimed in claim 1, wherein: One side of the main valve sleeve is provided with an outer circular arc groove, and the mouth of the magnetic conducting sleeve is provided with an inner circular arc groove, and the outer circular arc groove and the inner circular arc groove are connected and fixed through the steel wire retainer.

3. An improved two-position four-way solenoid valve as claimed in claim 1, wherein: Further comprising a spring arranged on the outer circle of the spool core, one end of the spring is pressed on one side of the spool core, and the spool core is pressed and limited on the magnetic conducting sleeve, and the other end of the spring is pressed on one end of the main valve sleeve.

4. An improved two-position four-way solenoid valve as claimed in claim 1, wherein: The end surface of the spool core is machined with a circular arc type straight groove.

5. An improved two position four way solenoid valve as claimed in claim 1 wherein: The outer diameter of the spool core is machined with nine equalizing grooves, and the depth and width of the equalizing grooves are both 0.5mm.

6. An improved two-position four-way solenoid valve as claimed in claim 1, wherein: The outer part of the magnetic conducting sleeve is provided with an external thread matched with the valve block, and an O-ring is mounted on the external thread.

7. An improved two-position four-way solenoid valve as claimed in claim 1, wherein: Further comprising an emergency push rod arranged at the end of the moving iron.

8. An improved two-position four-way solenoid valve as claimed in claim 7, wherein: An O-ring is mounted on the emergency push rod.

9. An improved two-position four-way solenoid valve as claimed in claim 1, wherein: Further comprising a locking nut arranged at the end of the magnetic conducting sleeve.

10. An improved two-position four-way solenoid valve as claimed in claim 1, wherein: The outer circle of the main valve sleeve is machined with a groove.

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